Ichi chinyorwa chinovhara maitiro ekufananidza kumhanyisa muchina wekumhanyisa uye kureba kweovheni kuti ive nechokwadi chekuti organosilicone inonamira inosvika kune chinangwa chekurapa degree repamusoro-tembiricha yePTFE tepi. Musimboti wekufananidza: nguva yese yekugara t_total = hurefu hweovheni hunoshanda L ÷ mutsara wekumhanyisa v haifanirwe kunge iri pasi penguva shoma inodiwa yekurapa. Wana maitiro ekurapa kuburikidza neDSC kana adhesive kurapa bvunzo inomisikidza 'tembiricha - shoma yekurapa nguva' hukama. Yakaenzana cumulative yekurapa modhi: patsanura hovhoni muzvikamu, verenga ti=Li/v uye tcure(Ti), simbisa ∑(ti/tcure(Ti)) ≥1. Maitiro ekuverengera: isa tembiricha nzvimbo dzine urefu Li uye tembiricha Ti; seta mutsara wekumhanyisa v, kuverenga nguva yekugara yenzvimbo yega yega uye reshiyo yemupiro; iterate kusvika yakazara ≥1 (safety margin 1.1-1.2 yakakurudzirwa).

Ichi chinyorwa chinobata mhedzisiro ye gamma-ray irradiation pane PTFE chimiro uye zvivakwa. Chimiro chemakemikari chinoshanduka: gamma rays inotyora CC main cheni uye CF side cheni (G-value 3.0-3.5), zvichikonzera hombe cheni scission uye drastic molecular weight drop; muokisijeni, mahara radicals anoumba peroxy radicals achiunza acyl fluoride uye carboxylic acid yekupedzisira mapoka (hydrolyzing kuHF). Condensed structure inoshanduka: crystallinity inosimuka pakutanga (yakaderera dose, mafupi maketani anogadzirisazve) zvino inowira (yakakwirira dose, kukanganisa kunokanganisa makristasi); lamellar crystals fragment kuita madiki macrystallites ane akanyangarika kureba kwehurongwa. Kuparara kwepfuma: kureba panguva yekuzorora kunoderera kubva pa0.1 kGy mumhepo, kurasikirwa > 90% pa ~ 1kGy - zvinhu zvinova zvakaoma uye brittle; kunyungudika kunodonha kubva pa327°C kusvika pasi pe310°C; polar mapoka anosimudza zvishoma dielectric kugara / kurasikirwa; kushanduka kwepamusoro kubva kuchena kuenda kune grey / dema nekurasikirwa nekupenya.

Ichi chinyorwa chinovhara mabhenefiti ekushandisa kweTeflon yakakwirira-tembiricha jira mu lithium bhatiri electrode kuomesa. Inoshandiswa semabhandi ekutakurisa kana ma oven liner, kugadzirisa matambudziko matatu makuru: slurry adhesion, corrosion, uye electrode scratching. Nzvimbo ina dzakanakira: Electrode kunaka uye goho - anti-stick zvivakwa zvinodzivirira PVDF binder adhesion zvichiita kuti zvive nyore kupepeta; yunifomu thermal conductivity pa 100-140 ° C inodzivirira kuputika / kupisa; nzvimbo yakatsetseka inobvisa zvikwambo uye kubuda hupfu; Kugara uye kugadzikana kwekushanda - makemikari anopokana neNMP solvent uye electrolyte vapors pasina kuzvimba / kuchembera; kusimba kwepamusoro uye kugadzikana kwedimensional kubva kune fiberglass substrate yekunyatsomira; kucheneswa kuri nyore nekusarira zvishoma zvichienzaniswa nesimbi mesh mabhandi.

Ichi chinyorwa chinovhara chiitiko che delamination cheTeflon yakakwirira-tembiricha jira. Delamination inoreva kupatsanurwa uye kupepeta pakati pepamusoro PTFE yekupotera uye yemukati fiberglass base jira kana pakati peakawanda ekupfekedza akaturikidzana. Kuratidzwa kwekuona: blistering / bulging (yakasimudzwa mabhubhu ane mhango kunzwa) sezviratidzo zvekutanga; interlayer peeling nekuputira kubviswa zviri nyore mumapepa anoburitsa chena fiberglass; kuchena kwenzvimbo kunoteverwa nekuputika mushure mekupisa/kukweshana. Zvikonzero zvikuru: Thermal stress damage - kusiyanisa kupisa kwekuwedzera coefficients pakati pePTFE uye fiberglass kunogadzira kushushikana kwemukati, kukurumidza kupisa / kutonhora kunokonzera detachment; Kukanganisa kwemhando yekugadzira - kusakwana kwefiberglass kurapwa kwepamusoro, kushata kwePTFE kuisirwa, kusakwana sintering zvichikonzera kusimba kwekubatana kwechiso.

Ichi chinyorwa chinoongorora shanduko yezvimiro muPTFE yakakwirira-tembiricha jira panguva yekukwegura. Zvikamu zvina: PTFE coating microstructure — molecular chain scission and oxidation (carbonyl/carboxyl group formation), crystallinity change (kusimuka kwekutanga ndokudonha), micro-crack uye pinhole formation, pamusoro peupfu; Girazi fiber substrate uye interface - saizi / coupling agent kuora kunokonzera kurasikirwa kwe bonding, interfacial debonding uye delamination (blistering, white areas), glass fiber network erosion and embrittlement, alkali metal oxide precipitation inokonzera kushungurudzika kuora; Macroscopic chimiro uye chitarisiko - shanduko yeruvara (chena → beige → dema → dema), shrinkage deformation uye kupeta, kukwenya kwepamusoro uye kurasikirwa kwekupenya, kuita upfu pakubata, kurasikirwa zvachose kwekushanduka. Essence yekuchembera: kufambira mberi kwe 'coating degradation → interface kutadza → substrate degradation.'

Ichi chinyorwa chinotsanangura maitiro ekuchinja musimba rakabatana rePTFE yakakwirira-temperature tepi yakanamatira layer mushure mekuchembera kwakanyanya. Maitiro matatu-matanho: Kurapa kwemashure ekukwira kwepamusoro (kutanga kwekushisa kwepamusoro-kupisa pa 200-260 ° C, mapoka akasara anogadzirisa anoramba achiyambuka, kubatana kunowedzera zvakanyanya); Yakagadzikana equilibrium nhanho (crosslinking nzira dzekupedzisa, kubatana kunoramba kwakagadzikana kwenguva refu); Kudzikira uye kuderera nhanho (yakawandisa nguva / tembiricha inokonzeresa kuderera kweketani huru, kubatana kunoderera, kunamira kunopfava uye kunova tacky). Midzi inokonzeresa kutadza kwakabatana (kubvaruka kwemukati kusiya zvisaririra) uye kusvina-kunze (kutonhora kuyerera kubva kumicheto nekuda kwekudzikira modulus) kunoongororwa.

Ichi chinyorwa chinotsanangura mashandisirwo eTeflon yakakwira-tembiricha jira muindasitiri yesimba rezuva. Core application in module lamination: jira rekuburitsa rakaiswa pamusoro / pazasi PV modules rinodzivirira yakanyungudutswa EVA (140-150 ° C) kubva pakunamatira kupisa platen kana rabha ndiro, inodzivirira midziyo uye kuona yakatsetseka module nzvimbo; laminator conveyor mabhandi ekutakura otomatiki / kuburitsa; rubber platen inodzivirira jira rinowedzera hupenyu hwebasa. Cell stringer soldering: mabhandi ekutakurisa anotakura maseru uye ribhoni kuburikidza nekudziya nzvimbo, neasina-tsvimbo pamusoro anopesana nekuyerera uye solder splashes; kudziyisa papuratifomu makusheni nokuda soldering workstations. High-temperature insulation: kuputira kupisa machubhu, thermocouples, tambo mumalaminators uye kurapa ovheni; midziyo yekupisa yekuvharisa machira uye nhovo.

Ichi chinyorwa chinovhara matanho ekutanga anodiwa kune fiberglass jira pamberi pePTFE emulsion impregnation. Danho 1: Kupisa/kubvisa wakisi pa300-450°C kubvisa zvachose parafini wakisi nemafuta kubva pafayibha pamusoro (parafini wax, starch derivatives), saizi yakasara inodiwa iri pasi pe0.2%, ichigadzira 'mucheka wakabviswa wakisi.' Danho 2: Mushonga wemakemikari wepamusoro - kushandisa silane,KH-50 coupling,KH-50 A-174) kugadzira kemikari yekubatanidza firimu pane fiber pamusoro, zvichiita kuti molecular bhiriji pakati pe inorganic glass fibers uye organic PTFE; machira anotengeswa asati agadzirwa anogona kusvetuka danho iri asi anofanira kusimbiswa. Danho rechitatu: Kuomesa nekupisa - kuomesa pa80-120 ° C kwemaawa 1-2 kuderedza hunyoro huri pasi pe0.1%, kudzivirira kuumbwa kwebubble / void panguva yekurapa.

Ichi chinyorwa chinopa nzira dzekuvandudza zvinokambaira kuramba uye kwenguva yakareba kubata kugadzikana kwepamusoro-kubata Teflon yakakwirira-tembiricha tepi. Nzira dzinosanganisira: Molecular network topology optimization - high MQ silicone resin / gum ratio (1.2: 1-2: 1) inoumba nzvimbo dzakaoma dzakaoma-chikamu; kubatanidzwa kwemapoka ephenyl (20-30 mol%) inodzivisa kufamba kweketani; crosslink molecular weight controlled at 5,000-15,000 g / mol; Gradient modulus multilayer adhesive structure - primer-anchoring layer (1-3μm) ine silane coupling agent, high-modulus cohesive layer (30-50μm) seskeleton isingadziviriri skeleton, viscoelastic functional layer (3-8μm) yekunyorova pamusoro; Nanofillers - fumed silica (10-25 wt%) ine shanduko yepasi inogadzira inodzokororwa yemuviri kuyambuka.

Ichi chinyorwa chinotsanangura kuti PTFE yekupfekedza zvisungo kune fiberglass jira substrate muTeflon yakakwirira-yekushisa jira. Yakananga makemikari bonding haigoneki nekuda kwePTFE's Ultra-yakaderera pamusoro pesimba. Kubatana kunowanikwa kuburikidza ne: Mechanical interlocking (physical bonding) - PTFE emulsion inopinda mumakumbo efiber uye inobata fiber bundles mushure mekucheka; Silane coupling agent pretreatment - inoumba molecular bridge pakati pe inorganic glass fibers uye organic primer; Chemical primer transition layer - uchishandisa PAI, PPS, PES kana PEEK resin ine PTFE micropowder, inoiswa mushure mekubatanidza kurapwa kugadzira yakasimba shanduko layer; Hot-melt adhesive film lamination - FEP kana PFA films (melting point 260-310 ° C) bond pre-formed PTFE films to fabric; Gradient chimiro kuburikidza neakawanda impregnation uye sintering cycles - dilute yekutanga pass ine binder/coupling agent inopinda zvakadzika mumafiber, ichiteverwa neyakachena PTFE impregnations, ichigadzira compositional gradient kubva pafiberglass kuenda kuPTFE yakachena.